×

High-resolution finite volume computations using a novel weighted least-squares formulation. (English) Zbl 1384.65060

Summary: High-resolution finite volume schemes based on a novel reconstruction technique, SDWLS (solution-dependent weighted least squares) are considered. The SDWLS technique, originally developed for second-order variable reconstruction by J. C, Mandal and J. Subramanian [Appl. Numer. Math. 58, No. 5, 705–725 (2008; Zbl 1138.65074)] is further extended to third-order reconstruction with compact stencils involving only the nearest neighbors. The new schemes are applied to solve a few numerical test examples, involving scalar conservation laws and the system of non-linear gas dynamics equations, in order to study their performance. Significant improvements in solution accuracy have been achieved with the second- and third-order SDWLS reconstruction techniques.

MSC:

65M08 Finite volume methods for initial value and initial-boundary value problems involving PDEs
35Q31 Euler equations

Citations:

Zbl 1138.65074
Full Text: DOI

References:

[1] Harten, Journal of Computational Physics 49 pp 357– (1983)
[2] Harten, Applied Numerical Mathematics 2 pp 347– (1986)
[3] Mandal, Applied Numerical Mathematics (2007)
[4] Aftosmis, AIAA Journal 33 pp 2038– (1995)
[5] Mandal, Notes on Numerical Fluid Mechanics 24 pp 384– (1989)
[6] Mandal, Computers and Fluids 23 pp 447– (1994)
[7] . The design and application of upwind schemes on unstructured meshes. AIAA-89-0366, 1989.
This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. In some cases that data have been complemented/enhanced by data from zbMATH Open. This attempts to reflect the references listed in the original paper as accurately as possible without claiming completeness or a perfect matching.